Book Image

AWS Certified Developer - Associate Guide

By : Vipul Tankariya, Bhavin Parmar
Book Image

AWS Certified Developer - Associate Guide

By: Vipul Tankariya, Bhavin Parmar

Overview of this book

AWS Certified Developer - Associate Guide starts with a quick introduction to AWS and the prerequisites to get you started. Then, this book gives you a fair understanding of core AWS services and basic architecture. Next, this book will describe about getting familiar with Identity and Access Management (IAM) along with Virtual private cloud (VPC). Moving ahead you will learn about Elastic Compute cloud (EC2) and handling application traffic with Elastic Load Balancing (ELB). Going ahead you we will talk about Monitoring with CloudWatch, Simple storage service (S3) and Glacier and CloudFront along with other AWS storage options. Next we will take you through AWS DynamoDB – A NoSQL Database Service, Amazon Simple Queue Service (SQS) and CloudFormation Overview. Finally, this book covers understanding Elastic Beanstalk and overview of AWS lambda. At the end of this book, we will cover enough topics, tips and tricks along with mock tests for you to be able to pass the AWS Certified Developer - Associate exam and develop as well as manage your applications on the AWS platform.
Table of Contents (29 chapters)
Title Page
Credits
About the Author
Acknowledgments
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Dedication
Preface
Index

ClassicLink


Since December 4, 2013, AWS supports EC2-VPC only. But before that, it was possible to create EC2-Classic. EC2-Classic and EC2-VPC both are totally different in many ways. ClassicLink is the only way to make communication possible between them within the same region. Enabling the ClassicLink option allows a VPC to communicate with the EC2 instances launched in EC2-Classic. Without this option enabled, resources in the VPC need to use the public IP address of the EC2-Classic instance or tunneling for communication. If you have any resources in EC2-Classic that require direct communication with VPC resources, ClassicLink can help.

Enabling ClassicLink allows you to use VPC security groups on the EC2-Classic instances and, in turn, this enables communication between instances in EC2-Classic and VPC using private IPv4 addresses. It is available in all AWS accounts that support EC2-Classic instances. There is no additional charge for using ClassicLink; however, standard data transfer...